f5a259ba57
Configuration errors can be resolved before the instance is created. This avoids the unnecessary throws that were generated when an error occured. As the configuration is stored in the router, the router sessions can use a pointer to it instead of copying it locally. This should avoid some unnecessary copying if more complex configuration parameters are added.
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
#pragma once
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/*
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* Copyright (c) 2016 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2019-07-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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/**
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* @file schemarouter.hh - Common schemarouter definitions
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*/
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#define MXS_MODULE_NAME "schemarouter"
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#include <maxscale/cdefs.h>
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#include <limits>
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#include <set>
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#include <string>
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#include <maxscale/pcre2.h>
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using std::set;
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using std::string;
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namespace schemarouter
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{
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/**
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* Configuration values
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*/
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struct Config
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{
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double refresh_min_interval; /**< Minimum required interval between
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* refreshes of databases */
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bool refresh_databases; /**< Are databases refreshed when
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* they are not found in the hashtable */
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bool debug; /**< Enable verbose debug messages to clients */
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pcre2_code* ignore_regex; /**< Regular expression used to ignore databases */
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pcre2_match_data* ignore_match_data; /**< Match data for @c ignore_regex */
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set<string> ignored_dbs; /**< Set of ignored databases */
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Config():
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refresh_min_interval(0.0),
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refresh_databases(false),
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debug(false),
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ignore_regex(NULL),
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ignore_match_data(NULL)
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{
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}
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};
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/**
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* Router statistics
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*/
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struct Stats
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{
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int n_queries; /*< Number of queries forwarded */
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int n_sescmd; /*< Number of session commands */
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int longest_sescmd; /*< Longest chain of stored session commands */
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int n_hist_exceeded; /*< Number of sessions that exceeded session
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* command history limit */
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int sessions; /*< Number of sessions */
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int shmap_cache_hit; /*< Shard map was found from the cache */
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int shmap_cache_miss; /*< No shard map found from the cache */
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double ses_longest; /*< Longest session */
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double ses_shortest; /*< Shortest session */
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double ses_average; /*< Average session length */
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Stats():
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n_queries(0),
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n_sescmd(0),
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longest_sescmd(0),
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n_hist_exceeded(0),
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sessions(0),
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shmap_cache_hit(0),
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shmap_cache_miss(0),
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ses_longest(0.0),
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ses_shortest(std::numeric_limits<double>::max()),
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ses_average(0.0)
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{
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}
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};
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}
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